Science, asked by revojosonsapno, 1 year ago

A student who weighs 500newtons climbed the stairs from the first floor to the third floor, 15 meters above, in 20seconds.a.How much work did she do?b.What was her power

Answers

Answered by wwwpratik4you

2

Answer:

Explanation:

Work done = force × displacement

Here weight = 500 N

Means mass of person is 50 kg

So work done = mgh

50×10×15= 7500j

And power = work/time

7500/20 = 375

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